--- /dev/null
+/* Test of creating a locale object.
+ Copyright (C) 2025 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2025. */
+
+#include <config.h>
+
+#include <locale.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (newlocale, locale_t, (int, const char *, locale_t));
+
+#include "macros.h"
+
+#if defined _WIN32 && !defined __CYGWIN__
+
+# define ENGLISH "English_United States"
+# define FRENCH "French_France"
+# define GERMAN "German_Germany"
+# define ENCODING ".1252"
+
+# define LOCALE1 ENGLISH ENCODING
+# define LOCALE2 FRENCH ENCODING
+# define LOCALE3 GERMAN ENCODING
+
+#else
+
+# define LOCALE1 "en_US.UTF-8"
+# define LOCALE2 "fr_FR.UTF-8"
+# define LOCALE3 "de_DE.UTF-8"
+
+#endif
+
+int
+main ()
+{
+ locale_t l1 = newlocale (LC_TIME_MASK, LOCALE1, NULL);
+ locale_t l2 = newlocale (LC_MESSAGES_MASK, LOCALE2, l1);
+ locale_t l3 = newlocale (LC_TIME_MASK, LOCALE3, l2);
+ (void) l3;
+
+ return test_exit_status;
+}